Zac Efron - Teen Choice Awards 2008

The 20-year-old High School Musical star was seen giving costar girlfriend a great big hug on the blue carpet. Zanessa also joined Hancock star Will Smith for a few pics. Zac was also seen taking pictures with Gossip Girl hunk Chace Crawford (pictured below).

The 2008 Teen Choice Awards is scheduled to air on Monday @ 8PM ET/PT on FOX.